LOHOME (TM) 2 Headed Clip-on Music Stand Light - US Adapter - 4 Bulb LED Book Reading Lamp - Ideal Portable Lights for Musicians, Crafters and Artists - Best Choice for Office Table, Travel, Books At Night on Bed and Students Dorm Room Accessories Two energy-efficient LEDs per gooseneck cast bright white light. Durable LEDs last 100,000 hours - no replacement necessary. Two switches control up to four lighting levels. Precisely engineered optical grade lens spreads light evenly. Sturdy padded clip firmly grips music stands.